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<h1>Class <code>luci.http.conditionals</code></h1>

<p></p>







<h2>Functions</h2>
<table class="function_list">

	<tr>
	<td class="name" nowrap><a href="#if_match">if_match</a>&nbsp;(req, stat)</td>
	<td class="summary">
 
14.24 / If-Match 
 
Test whether the given message object contains an "If-Match" header and 
compare it against the given stat object.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#if_modified_since">if_modified_since</a>&nbsp;(req, stat)</td>
	<td class="summary">
 
14.25 / If-Modified-Since 
 
Test whether the given message object contains an "If-Modified-Since" header 
and compare it against the given stat object.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#if_none_match">if_none_match</a>&nbsp;(req, stat)</td>
	<td class="summary">
 
14.26 / If-None-Match 
 
Test whether the given message object contains an "If-None-Match" header and 
compare it against the given stat object.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#if_range">if_range</a>&nbsp;(req, stat)</td>
	<td class="summary">
 
14.27 / If-Range 
 
The If-Range header is currently not implemented due to the lack of general 
byte range stuff in luci.http.protocol .</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#if_unmodified_since">if_unmodified_since</a>&nbsp;(req, stat)</td>
	<td class="summary">
 
14.28 / If-Unmodified-Since 
 
Test whether the given message object contains an "If-Unmodified-Since" 
header and compare it against the given stat object.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#mk_etag">mk_etag</a>&nbsp;(stat)</td>
	<td class="summary">
 
Implement 14.19 / ETag.</td>
	</tr>

</table>






<br/>
<br/>


<h2><a name="functions"></a>Functions</h2>
<dl class="function">



<dt><a name="if_match"></a><strong>if_match</strong>&nbsp;(req, stat)</dt>
<dd>

 
14.24 / If-Match 
 
Test whether the given message object contains an "If-Match" header and 
compare it against the given stat object.


<h3>Parameters</h3>
<ul>
	
	<li>
	  req: HTTP request message object
	</li>
	
	<li>
	  stat: A file.stat object
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>Boolean indicating whether the precondition is ok
	
	<li>Alternative status code if the precondition failed
	
</ol>



</dd>




<dt><a name="if_modified_since"></a><strong>if_modified_since</strong>&nbsp;(req, stat)</dt>
<dd>

 
14.25 / If-Modified-Since 
 
Test whether the given message object contains an "If-Modified-Since" header 
and compare it against the given stat object.


<h3>Parameters</h3>
<ul>
	
	<li>
	  req: HTTP request message object
	</li>
	
	<li>
	  stat: A file.stat object
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>Boolean indicating whether the precondition is ok
	
	<li>Alternative status code if the precondition failed
	
	<li>Table containing extra HTTP headers if the precondition failed
	
</ol>



</dd>




<dt><a name="if_none_match"></a><strong>if_none_match</strong>&nbsp;(req, stat)</dt>
<dd>

 
14.26 / If-None-Match 
 
Test whether the given message object contains an "If-None-Match" header and 
compare it against the given stat object.


<h3>Parameters</h3>
<ul>
	
	<li>
	  req: HTTP request message object
	</li>
	
	<li>
	  stat: A file.stat object
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>Boolean indicating whether the precondition is ok
	
	<li>Alternative status code if the precondition failed
	
	<li>Table containing extra HTTP headers if the precondition failed
	
</ol>



</dd>




<dt><a name="if_range"></a><strong>if_range</strong>&nbsp;(req, stat)</dt>
<dd>

 
14.27 / If-Range 
 
The If-Range header is currently not implemented due to the lack of general 
byte range stuff in luci.http.protocol . This function will always return 
false, 412 to indicate a failed precondition.


<h3>Parameters</h3>
<ul>
	
	<li>
	  req: HTTP request message object
	</li>
	
	<li>
	  stat: A file.stat object
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>Boolean indicating whether the precondition is ok
	
	<li>Alternative status code if the precondition failed
	
</ol>



</dd>




<dt><a name="if_unmodified_since"></a><strong>if_unmodified_since</strong>&nbsp;(req, stat)</dt>
<dd>

 
14.28 / If-Unmodified-Since 
 
Test whether the given message object contains an "If-Unmodified-Since" 
header and compare it against the given stat object.


<h3>Parameters</h3>
<ul>
	
	<li>
	  req: HTTP request message object
	</li>
	
	<li>
	  stat: A file.stat object
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>Boolean indicating whether the precondition is ok
	
	<li>Alternative status code if the precondition failed
	
</ol>



</dd>




<dt><a name="mk_etag"></a><strong>mk_etag</strong>&nbsp;(stat)</dt>
<dd>

 
Implement 14.19 / ETag. 



<h3>Parameters</h3>
<ul>
	
	<li>
	  stat: A file.stat structure
	</li>
	
</ul>






<h3>Return value:</h3>
String containing the generated tag suitable for ETag headers



</dd>


</dl>





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